3Jeong 6 Y,Kim M H. Effects of the process parameters on the layerformation behavior of plasma nitrided steels[ J]. Surface and CoatingsTechnology, 2001, 141(2/3); 182-186.
4Oates T W H, McKenzie D H, Bilek M M M. Plasma immersion ionimplantation using polymeric substrates with a sacrificial conductivesurface layer [ J]. Surface and Coatings Technology, 2002, 156 :332-337.